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For a function f, f(-1) = 12 and f(1) = 16. If thegraph of y =f(x) is a line in the xy-plane, what is theslope of the line? |
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Answer» if f(x1)=y1 and f(x2)=y2then slope of line y=f(x) is given bym={f(x1)-f(x2)}/(x1-x2)so the required slope is m={f(1)-f (-1)}/(1-(-1))m=16-12/1+1=4/2=2 |
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